Age of Consent (1969)

An elderly artist thinks he has become too stale and is past his prime. His friend (and agent) persuades him to go to an offshore island to try once more. On the island he re-discovers his muse in the form of a young girl.
James Mason … Bradley Morahan
Helen Mirren … Cora Ryan
Jack MacGowran … Nat Kelly
Neva Carr-Glynn … Ma Ryan (as Neva Carr-Glyn)
Andonia Katsaros … Isabel Marley
Michael Boddy … Hendricks
Harold Hopkins … Ted Farrell